hg: jdk/sandbox: 8210155: Lock ClassLoaderDataGraph

[chris.hegarty at oracle.com]

Changeset: 625a5bdde0c5
Author:    coleenp
Date:      2018-08-31 07:03 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/625a5bdde0c5

8210155: Lock ClassLoaderDataGraph
Summary: In preparation for concurrent class unloading.
Reviewed-by: hseigel, eosterlund

! src/hotspot/share/classfile/classLoaderData.cpp
! src/hotspot/share/classfile/classLoaderData.hpp
! src/hotspot/share/classfile/systemDictionary.cpp
! src/hotspot/share/gc/cms/concurrentMarkSweepGeneration.cpp
! src/hotspot/share/jfr/periodic/jfrModuleEvent.cpp
! src/hotspot/share/jfr/recorder/checkpoint/types/jfrTypeManager.cpp
! src/hotspot/share/jfr/recorder/repository/jfrEmergencyDump.cpp
! src/hotspot/share/memory/heapInspection.cpp
! src/hotspot/share/memory/heapInspection.hpp
! src/hotspot/share/memory/metaspaceShared.cpp
! src/hotspot/share/memory/universe.cpp
! src/hotspot/share/oops/klassVtable.cpp
! src/hotspot/share/prims/jvmtiEnvBase.cpp
! src/hotspot/share/prims/jvmtiGetLoadedClasses.cpp
! src/hotspot/share/prims/whitebox.cpp
! src/hotspot/share/runtime/java.cpp
! src/hotspot/share/runtime/mutexLocker.cpp
! src/hotspot/share/runtime/mutexLocker.hpp
! src/hotspot/share/services/heapDumper.cpp